Connolly Gallagher

To: Senior Partner
From: Patent Litigation Analyst
Date: 2026-05-01
Subject: Professional Summary: Connolly Gallagher LLP Patent Litigation Practice

Connolly Gallagher LLP is a Delaware-based law firm with offices in Wilmington and Newark. Founded in 2012, the firm comprises approximately 25 lawyers and is recognized as a regional specialty firm with deep roots in the Delaware legal community. While not a large national "BigLaw" firm, its intellectual property practice is ranked by Chambers USA and its key partners are recognized by services such as IAM Patent 1000. This indicates a respected and established presence, particularly for litigation in the U.S. District Court for the District of Delaware, a key venue for patent disputes.

The firm's patent litigation practice handles matters across a range of technologies, including medical devices, pharmaceuticals, software, and telecommunications. Its attorneys are experienced in representing clients in patent infringement, trademark, and trade secret disputes. The firm primarily acts as Delaware counsel for parties in the District Court, partnering with national lead counsel and providing guidance on local court rules and practices.

Based on available public records, Connolly Gallagher has experience representing both plaintiffs and defendants in patent disputes. The authoritative case list shows the firm representing plaintiff Angiodynamics Inc., and the firm’s public profiles confirm its balanced practice, serving a client roster that ranges from local businesses to Fortune 500 companies. This suggests a flexible practice not exclusively aligned with either patent assertion entities or defendants.

The firm's most prominent recent case in the provided data is Angiodynamics Inc v. Endovascular Engineering Inc, a plaintiff-side action filed in April 2026 concerning medical device patents for thrombectomy systems. The case alleges that the defendant’s Hēlo Thrombectomy System infringes on AngioDynamics' proprietary technology. Public information on the firm’s Patent Trial and Appeal Board (PTAB) practice is limited, suggesting that high-volume inter partes review (IPR) work is not a primary focus of its public-facing practice. The firm’s patent litigation practice is anchored by founding partner Arthur G. Connolly, III, and partner Alan R. Silverstein, both of whom are consistently recognized in legal industry rankings for their intellectual property litigation work.